Pascal (Lazarus/Delphi)

Subscribe to Mailboxes and List Subscribed Mailboxes

See more IMAP Examples

Demonstrates how to list subscribed mailboxes, and unsubscribe/subscribe to a mailbox. Pascal (Lazarus/Delphi)

program ChilkatDemo;

// Demonstrates using the Chilkat Pascal wrapper via the C bridge DLL.
// Builds as a console application under Lazarus (FPC) or Delphi.

{$IFDEF FPC}
  {$MODE DELPHI}
{$ENDIF}
{$APPTYPE CONSOLE}

uses
  {$IFDEF UNIX}
  cthreads,
  {$ENDIF}
  SysUtils,
  CkDllLoader,
  Chilkat.Imap,
  Chilkat.Mailboxes;

// ---------------------------------------------------------------------------

procedure RunDemo;
var
  success: Boolean;
  imap: TImap;
  refName: string;
  wildcardedMailbox: string;
  subscribed: Boolean;
  mboxes: TMailboxes;
  i: Integer;

begin
  success := False;

  //  This example assumes the Chilkat API to have been previously unlocked.
  //  See Global Unlock Sample for sample code.

  imap := TImap.Create;

  //  Connect to an IMAP server.
  //  Use TLS
  imap.Ssl := True;
  imap.Port := 993;
  success := imap.Connect('imap.example.com');
  if (success = False) then
    begin
      WriteLn(imap.LastErrorText);
      Exit;
    end;

  //  Login
  success := imap.Login('myLogin','myPassword');
  if (success = False) then
    begin
      WriteLn(imap.LastErrorText);
      Exit;
    end;

  //  First examine the already subscribed mailboxes.
  refName := '';
  wildcardedMailbox := '*';
  subscribed := True;

  mboxes := TMailboxes.Create;
  success := imap.MbxList(subscribed,refName,wildcardedMailbox,mboxes);
  if (success = False) then
    begin
      WriteLn(imap.LastErrorText);
      Exit;
    end;

  i := 0;
  while i < mboxes.Count do
    begin
      WriteLn(mboxes.GetName(i));
      i := i + 1;
    end;

  WriteLn('----');

  //  Sample output.

  //  INBOX
  //  INBOX/recent
  //  INBOX/misc
  //  INBOX/misc/solutions
  //  ...
  //  Outbox
  //  Deleted Items
  //  Sent Items
  //  Drafts
  //  Junk E-mail
  //  Trash
  //  Sent
  //  Templates

  //  Let's unsubscribe to "INBOX/misc/solutions".
  success := imap.Unsubscribe('INBOX/misc/solutions');
  if (success = False) then
    begin
      WriteLn(imap.LastErrorText);
      Exit;
    end;

  //  Get the list of subscribed mailboxes again to verify that "INBOX/misc/solutions" is missing.
  success := imap.MbxList(subscribed,'','INBOX/misc*',mboxes);
  if (success = False) then
    begin
      WriteLn(imap.LastErrorText);
      Exit;
    end;

  i := 0;
  while i < mboxes.Count do
    begin
      WriteLn(mboxes.GetName(i));
      i := i + 1;
    end;

  WriteLn('----');

  //  Re-subscribe to "INBOX/misc/solutions".
  success := imap.Subscribe('INBOX/misc/solutions');
  if (success = False) then
    begin
      WriteLn(imap.LastErrorText);
      Exit;
    end;

  //  Get the list of subscribed mailboxes again to verify that "INBOX/misc/solutions" is back in the list.
  success := imap.MbxList(subscribed,'','INBOX/misc*',mboxes);
  if (success = False) then
    begin
      WriteLn(imap.LastErrorText);
      Exit;
    end;

  i := 0;
  while i < mboxes.Count do
    begin
      WriteLn(mboxes.GetName(i));
      i := i + 1;
    end;

  WriteLn('----');

  //  Disconnect from the IMAP server.
  success := imap.Disconnect();


  imap.Free;
  mboxes.Free;

end;

// ---------------------------------------------------------------------------

begin

  try
    RunDemo;
  except
    on E: Exception do
      WriteLn('Unhandled exception: ', E.ClassName, ': ', E.Message);
  end;

  WriteLn;
  {$IFDEF MSWINDOWS}
  WriteLn('Press Enter to exit...');
  ReadLn;
  {$ENDIF}
end.